I have the answer in this picture. But im not sure if this might be really what your asking for.
1 Remove parentheses.
2(5c−7)≥c−3
2 Expand.
10c−14 ≥ c −3
3 Add 14 to both sides.
10c-14+14≥ c − 3+14
4 Simplify c−3+14 to c+11
10c≥c+11
5 Subtract c from both sides.
10c−c≥11
6 Simplify 10c−c to 9c
9c≥11
7 Divide both sides by 9.
c ≥11/9
(15x^3y^-8)÷(5x^2y^-4)
= 3xy^-4
(3x)/ y^4
From the ratio given we know that there is 3 times more cats than dogs.
If there are 15 cats, then there are 15/3 dogs or 5 dogs.
answer: 5 dogs